Title:
SENSOR SYSTEM, MASTER DEVICE, AND SLAVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/047697
Kind Code:
A1
Abstract:
Provided is a sensor system that is able to synchronize laser light scanned with two MEMS mirrors, even when there is variation in the resonance frequency of the two MEMS mirrors. In the present invention a master device has a first MEMS mirror for raster-scanning first laser light emitted by a first light-emitting unit, an acquisition unit for acquiring light emission start timing data indicating a light emission start timing of the first light-emitting unit, on the basis of the scanning angle of the first MEMS mirror, and a first light emission control unit for controlling light emission of the first laser light. A slave device has a second MEMS mirror for raster-scanning second laser light emitted by a second light-emitting unit, a determination unit for determining whether the scanning angle of the second MEMS mirror is within the angular range of the effective measurement range of the slave device, and a second light emission control unit for controlling light emission of the second laser light on the basis of the light emission start timing data supplied from the master device, when it is determined by the determination unit that the scanning angle is within the effective measurement range.
Inventors:
TEZUKA KOICHI (JP)
IIDA KOICHI (JP)
SAKAI KATSUSHI (JP)
MORIKAWA TAKESHI (JP)
IIDA KOICHI (JP)
SAKAI KATSUSHI (JP)
MORIKAWA TAKESHI (JP)
Application Number:
PCT/JP2022/032404
Publication Date:
March 07, 2024
Filing Date:
August 29, 2022
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
G01S17/87; G01S7/484; G01S17/42
Domestic Patent References:
| WO2019159802A1 | 2019-08-22 | |||
| WO2019188639A1 | 2019-10-03 |
Foreign References:
| JP2021532368A | 2021-11-25 | |||
| JP2013113670A | 2013-06-10 | |||
| JP2015197402A | 2015-11-09 | |||
| CN107329145A | 2017-11-07 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Download PDF: